Spark intensifying device



' y 1953 I M. E. AUTREY 7 2,841,629

SPARK INTENSIFYING DEVICE Filed NOV. 4, 1955 30 V INVENTOR.

MORRIS E. AUTREY.

ATTORNEY United States Patent U" SPARK INTENSIFYLN G DEVICE Morris E. Autrey, De Kalb, Tex.

Application November 4, 1955, Serial No. 544,873

1 Claim. (Cl. 123-148) This invention relates to devices for intensifying the spark in an internal combustion engine.

An object of this invention is to provide a device of this character that will provide a hotter spark, increase the ease of starting the engine in cold weather and prevent the engine from drowning out in rain and wet weather.

A further object of the invention is to provide a device of this character that will greatly increase the efi'iciency of the engine.

With the above and other objects and advantages in view, the invention consists of the novel details of construction, arrangement and combination of parts more fully hereinafter described, claimed and illustrated in the accompanying drawing in which:

Fig. 1 shows a portion of an internal combustion engine with a device embodying the invention installed between the coil and distributor of the invention;

Fig. 2 is a vertical sectional view of the device embodying the invention;

Fig. 3 is a transverse sectional view on the line 3--3 of Fig. 2 with the cap removed; and

Fig. 4 is a transverse sectional view on the line 4-4 of Fig. 2.

Referring more in detail to the drawing, wherein like parts are designated by like reference numerals, the reference numeral is used to designate an internal combustion engine.

The internal combustion engine 10 may be of any size or design and is equipped in the usual manner with a coil 11 and a distributor 12. The spark intensifying device embodying the invention is generally designated by the reference numeral 13 and when in use is connected at one end to the distributor cap 14 and at the other end to a cable 15 that is connected to the coil 11.

The spark intensifying device 13 embodies a helically coiled body 16 that is provided with a spirally extending ridge 17 that is in alternate relation with a spirally extending groove 18.

A cylindrical projection 19 extends from each end of the body 16 and the body is interchangeable for best results in connecting the same to the internal combustion engine 10.

A strand of wire 20 is provided with a loop 21 that is positioned on a projection 19 and a portion 22 of the wire 20 extends from one end of the loop 21 to follow the groove 18 for a portion thereof. The end of the wire is bent at right angles as at 23, Fig. 3, and the 2,841,629 Patented July 1, 1958 extreme end 24 of the portion 22 beyond the bend 23 is inserted into an opening 25 in the body 16.

Another short strand of wire 26 is positioned in the groove 18 and the ends of the wire 26 are bent at right angles as at 27 in Fig. 3. One extreme end 28 of the wire 26 is inserted into an opening 31 into the body 16 so that it is in contact with the extreme end 24 of the portion 22 as shown in Fig. 3, thus current will pass between the wires 20 and 26.

A second strand of wire 29 similar to the strand 20 is provided with a loop 30, and the loop 30 is positioned on the projection 19 on the opposite end of the body 16, as shown in Fig. 2. The extreme end of the strand 29 is bent at right angles and inserted into an opening 32 in the body 16 so that it is in contact with the opposite extreme end of the strand of wire 26.

The ends are in contact with each other as shown in Fig. 3 and as previously described.

A housing or cover 33 of non-conductible material is provided to house the body 16 as shown in Fig. 2. One end of the body is provided with a tubular projection 34 to engage the loop 30 and projection 19. The opposite end of the housing 33 is provided with a removable cover 35 that also has a tubular projection 36 to engage the loop 21 and the opposite projection 19.

The spark intensifying device is mounted as in Fig. 1 with one end connected to the distributor and the other end connected to the coil of an internal combustion engine. In this position it intensifies the spark to increase the efliciency of the engine.

It is believed that the construction and manner of use of the invention will be apparent to those skilled in the art and it is to be understood that changes may be made in the minor details of construction, arrangement and combination of parts without departing from the spirit of the invention and the scope of the appended claim.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

A device of the character described comprising a cylindrical body of insulating material having a spiral groove formed in the sides thereof, a cylindrical casing of insulating material closely encompassing the sides and ends of said body and having a hollow tubular projection centrally formed at each end thereof, a cylindrical projection formed at each end of said body and each closely encompassed by its associated tubular projection, a pair of U-shaped loops each having its legs extending inwardly at diametrically opposed points between the inner walls of one tubular projection and its associated cylindrical projection whereby to hold said loops in position, one of the legs of each of said loops terminating at the adjacent end of the body, and a wire interconnecting the remaining legs and extending through said spiral groove, said groove being of a length to permit two complete convolutions of said wire.

References Cited in the file of this patent UNITED STATES PATENTS 1,614,951 Fuller Ian. 18, 1927 FOREIGN PATENTS 762,664 France Apr. 16, 19.34 

